Jagvir Dehal - Software Developer

Work Experience

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Tesla Motors

Maps and Navigation (C/C++, Go, Python)

• Developed a vehicle simulator for navigation validation (Python, C++)
• Built a replacement for our firmware networking code to utilize gRPC (C++, Go)
• Implemented a new weather radar service in Go, which in turn, saved $1.8 million.
• Integrated an AWS Client into our Navigation infrastructure to significantly reduce costs and deployment time
• Reproduced and patched a 2 year old networking bug in our production K8s deployment, as well as an ETA update bug caused by a race condition
• Contibuted a total of 122 PRs throughout the internship

Ford Motor Company

Bluetooth Drivers (C/C++)

• Developed a tool to tunnel UART bluetooth data from an Android device (car) over a TCP/IP socket to a Linux workstation in C
• Cleaned up 10,000+ bugs and warnings in a large C/C++ and Java codebase
• Worked on filtering PIIs from Bluetooth packets using C/C++ and Wireshark
• Gained a solid understanding of the Make/SOONG build system in AOSP

Advanced Micro Devices (AMD)

Display Abstraction Layer (C/C++)

• Updated 4 year old driver code for an FPGA GPU to enable DisplayPort over USB 4 using latest drivers.
• Refined my ability to use debug tools such as gdb and WindDBG to quickly understand a massive C/C++ codebase (the AMD display driver).
• Resolved issues and completed USB4 compliance process for Ryzen 6000 mobile GPUs using Voyager M4x, UCD-400, and debugging tools

NCR Corporation

Systems Software/Architecture (Python)

• Developed a firewall automation portal to enhance NCR's new security policies
• Learned and utilized new technologies such as Ansible Tower (AWX), Fortinet, and LDAP
• Collaborated remotely with teams in India, Ireland and USA
• Submitted a professional report to NCR's security team to support the adoption of my firewall portal

Projects

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Real-time Operating System from Scratch

(C++)

• Created a microkernel OS for a Raspberry Pi to control a model train set from the 1980s
• Implemented a scheduler, interrupt handler/controller, and several user tasks to build up our operating system in C
• Created several patches to QEMU's source code to implement Raspi functionality that was not yet implemented
• Collected velocity and acceleration data of the model trains to accurately predict their positions, avoid collisions, and route them efficiently

Java Subset Compiler

(C++)

• Created a compiler for a subset of the Java language in C++
• Autonomously tested compiler using the Fuzzing technique via LibFuzzer and LibProtoBuf Mutator
• Compiler performs scanning/parsing of source code, static checking on the resulting abstract syntax tree, and code generation into x86 assembly

Custom Keyboard Firmware

(C)

• Developed custom firmware for my ATMEGAU32 keyboard using QMK
• Implemented a feature to dynamically display my WPM on the keyboard via backlights
• Connected the keyboard to my smart home to control the lights and AC
• Goal: To gain experience with open source software, creating firmware in C, and APIs

Chess Endgame Solver

(Python)

• Developed a program that can arbitrarily solve endgame chess positions using graph theory
• Optimized algorithms to work with large datasets upwards of 4.5 million graph connections
• Utilizes data structure and algorithms knowledge to reduce time and space complexity

Flight Simulator

(JavaScript + Docker)

• Developed an accessible flight simulation experience that uses a smartphone accelerometer to control the airplane
• Implemented camera controls and movement from scratch using primative computer graphics (vectors, quaternions, etc.)

CNN Image Classification

(PyTorch)

• Developed a project focused on improving CNN accuracy for image classification from unlabeled data
• Utilized Principal Component Analysis (PCA) to normalize and reduce image complexity
• Clustered images together using K-means clustering approach